Authors:

Difficult" and "impossible" are cousins often mistaken for one another, with very little in common." (Locke Lamora to Requin)

Scott Lynch (2015). “The Gentleman Bastard Series 3-Book Bundle: The Lies of Locke Lamora, Red Seas Under Red Skies, The Republic of Thieves”, p.793, Random House
Difficult and impossible are cousins often mistaken for one another, with very little in common. (Locke Lamora to Requin)